Portability fixes

Added record_rnd_buffer
Added --safe-user-create
Fix for ALTER TABLE RENAME on windows


Docs/manual.texi:
  Changelog and documentation of new features.
  More information about using threaded client libraries
include/mysql_com.h:
  Added prototype for my_thread_init()
include/mysqld_error.h:
  New error for --safe-create-user
innobase/buf/buf0flu.c:
  Portability fix
innobase/include/univ.i:
  Portability fix
mysql-test/t/distinct.test:
  Test for distinct bug
sql/mysql_priv.h:
  Added record_rnd_buffer
sql/mysqld.cc:
  Added record_rnd_buffer
sql/records.cc:
  Added record_rnd_buffer
sql/share/czech/errmsg.txt:
  New error message for --safe-user-create
sql/share/danish/errmsg.txt:
  New error message for --safe-user-create
sql/share/dutch/errmsg.txt:
  New error message for --safe-user-create
sql/share/english/errmsg.txt:
  New error message for --safe-user-create
sql/share/estonian/errmsg.txt:
  New error message for --safe-user-create
sql/share/french/errmsg.txt:
  New error message for --safe-user-create
sql/share/german/errmsg.txt:
  New error message for --safe-user-create
sql/share/greek/errmsg.txt:
  New error message for --safe-user-create
sql/share/hungarian/errmsg.txt:
  New error message for --safe-user-create
sql/share/italian/errmsg.txt:
  New error message for --safe-user-create
sql/share/japanese/errmsg.txt:
  New error message for --safe-user-create
sql/share/korean/errmsg.txt:
  New error message for --safe-user-create
sql/share/norwegian-ny/errmsg.txt:
  New error message for --safe-user-create
sql/share/norwegian/errmsg.txt:
  New error message for --safe-user-create
sql/share/polish/errmsg.txt:
  New error message for --safe-user-create
sql/share/portuguese/errmsg.txt:
  New error message for --safe-user-create
sql/share/romanian/errmsg.txt:
  New error message for --safe-user-create
sql/share/russian/errmsg.txt:
  New error message for --safe-user-create
sql/share/slovak/errmsg.txt:
  New error message for --safe-user-create
sql/share/spanish/errmsg.txt:
  New error message for --safe-user-create
sql/share/swedish/errmsg.txt:
  New error message for --safe-user-create
sql/sql_acl.cc:
  Checking of privileges for --safe-user-create
sql/sql_acl.h:
  --safe-user-create
sql/sql_base.cc:
  --safe-user-create
sql/sql_parse.cc:
  --safe-user-create
sql/sql_show.cc:
  --safe-user-create
sql/sql_table.cc:
  Fix for ALTER TABLE RENAME on windows

include/mysql_com.h

@@ -218,17 +218,19 @@ my_bool check_scramble(const char *, const char *message,
 		       unsigned long *salt,my_bool old_ver);
 char *get_tty_password(char *opt_message);
 void hash_password(unsigned long *result, const char *password);
-#ifdef __cplusplus
-}
-#endif
 
 /* Some other useful functions */
 
 void my_init(void);
 void load_defaults(const char *conf_file, const char **groups,
 		   int *argc, char ***argv);
+my_bool my_thread_init(void);
 void my_thread_end(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #define NULL_LENGTH ((unsigned long) ~0) /* For net_store_length */
 
 #ifdef __WIN__

include/mysqld_error.h

@@ -211,4 +211,5 @@
 #define ER_DROP_DB_WITH_READ_LOCK 1208
 #define ER_CREATE_DB_WITH_READ_LOCK 1209
 #define ER_WRONG_ARGUMENTS 1210
-#define ER_ERROR_MESSAGES 211
+#define ER_NO_PERMISSON_TO_CREATE_USER 1211
+#define ER_ERROR_MESSAGES 212

innobase/buf/buf0flu.c

@@ -10,6 +10,7 @@ Created 11/11/1995 Heikki Tuuri
 
 #ifdef UNIV_NONINL
 #include "buf0flu.ic"
+#include "trx0sys.h"
 #endif
 
 #include "ut0byte.h"

innobase/include/univ.i

@@ -9,12 +9,10 @@ Created 1/20/1994 Heikki Tuuri
 #ifndef univ_i
 #define univ_i
 
-#if (defined(_WIN32) || defined(_WIN64))
+#if (defined(_WIN32) || defined(_WIN64)) && !defined(MYSQL_SERVER)
 #define __WIN__
 
-#ifndef MYSQL_SERVER
 #include <windows.h>
-#endif
 
 /* If you want to check for errors with compiler level -W4,
 comment out the above include of windows.h and let the following defines

mysql-test/t/distinct.test

@@ -198,3 +198,12 @@ insert into t2 values (1,1),(2,2),(3,3);
 select t1.a,sec_to_time(sum(time_to_sec(t))) from t1 left join t2 on (t1.b=t2.a) group by t1.a,t2.b;
 select distinct t1.a,sec_to_time(sum(time_to_sec(t))) from t1 left join t2 on (t1.b=t2.a) group by t1.a,t2.b;
 drop table t1,t2;
+
+#
+# Test problem with DISTINCT and HAVING
+#
+create table t1 (a int not null,b char(5), c text);
+insert into t1 (a) values (1),(2),(3),(4),(1),(2),(3),(4);
+select distinct a from t1 group by b,a having a > 2 order by a desc;
+select distinct a,c from t1 group by b,c,a having a > 2 order by a desc;
+drop table t1;

sql/mysql_priv.h

@@ -251,6 +251,7 @@ void kill_mysql(void);
 void close_connection(NET *net,uint errcode=0,bool lock=1);
 bool check_access(THD *thd,uint access,const char *db=0,uint *save_priv=0,
 		  bool no_grant=0);
+bool check_table_access(THD *thd,uint want_access,TABLE_LIST *tables);
 bool check_process_priv(THD *thd=0);
 
 int generate_table(THD *thd, TABLE_LIST *table_list,
@@ -530,10 +531,10 @@ extern ulong keybuff_size,sortbuff_size,max_item_sort_length,table_cache_size,
 	     what_to_log,flush_time,
 	     max_tmp_tables,max_heap_table_size,query_buff_size,
 	     lower_case_table_names,thread_stack,thread_stack_min,
-	     binlog_cache_size, max_binlog_cache_size;
+	     binlog_cache_size, max_binlog_cache_size, record_rnd_cache_size;
 extern ulong specialflag, current_pid;
-extern bool low_priority_updates, using_update_log;
-extern bool opt_sql_bin_update, opt_safe_show_db, opt_warnings;
+extern bool low_priority_updates, using_update_log,opt_warnings;
+extern bool opt_sql_bin_update, opt_safe_show_db, opt_safe_user_create;
 extern char language[LIBLEN],reg_ext[FN_EXTLEN],blob_newline;
 extern const char **errmesg;			/* Error messages */
 extern const char *default_tx_isolation_name;

sql/mysqld.cc

@@ -213,7 +213,8 @@ static bool opt_log,opt_update_log,opt_bin_log,opt_slow_log,opt_noacl,
 	    opt_disable_networking=0, opt_bootstrap=0,opt_skip_show_db=0,
 	    opt_ansi_mode=0,opt_myisam_log=0,
             opt_large_files=sizeof(my_off_t) > 4;
-bool opt_sql_bin_update = 0, opt_log_slave_updates = 0, opt_safe_show_db=0;
+bool opt_sql_bin_update = 0, opt_log_slave_updates = 0, opt_safe_show_db=0,
+     opt_safe_user_create=0;
 FILE *bootstrap_file=0;
 int segfaulted = 0; // ensure we do not enter SIGSEGV handler twice
 extern MASTER_INFO glob_mi;
@@ -261,7 +262,7 @@ ulong keybuff_size,sortbuff_size,max_item_sort_length,table_cache_size,
       query_buff_size, lower_case_table_names, mysqld_net_retry_count,
       net_interactive_timeout, slow_launch_time = 2L,
       net_read_timeout,net_write_timeout,slave_open_temp_tables=0,
-      open_files_limit=0, max_binlog_size;
+      open_files_limit=0, max_binlog_size, record_rnd_cache_size;
 ulong slave_net_timeout;
 ulong thread_cache_size=0, binlog_cache_size=0, max_binlog_cache_size=0;
 volatile ulong cached_thread_count=0;
@@ -1481,9 +1482,13 @@ static void open_log(MYSQL_LOG *log, const char *hostname,
   // get rid of extention if the log is binary to avoid problems
   if (type == LOG_BIN)
   {
-    char* p = strrchr((char*) opt_name, FN_EXTCHAR);
+    char *p = fn_ext(opt_name);
     if (p)
-      *p = 0;
+    {
+      uint length=(uint) (p-opt_name);
+      strmake(tmp,opt_name,min(length,FN_REFLEN));
+      opt_name=tmp;
+    }
   }
   log->open(opt_name,type);
 }
@@ -2471,7 +2476,8 @@ enum options {
 	       OPT_GEMINI_FLUSH_LOG, OPT_GEMINI_RECOVER,
                OPT_GEMINI_UNBUFFERED_IO, OPT_SKIP_SAFEMALLOC,
 	       OPT_SKIP_STACK_TRACE, OPT_SKIP_SYMLINKS,
-	       OPT_MAX_BINLOG_DUMP_EVENTS, OPT_SPORADIC_BINLOG_DUMP_FAIL
+	       OPT_MAX_BINLOG_DUMP_EVENTS, OPT_SPORADIC_BINLOG_DUMP_FAIL,
+	       OPT_SAFE_USER_CREATE
 };
 
 static struct option long_options[] = {
@@ -2583,7 +2589,7 @@ static struct option long_options[] = {
      (int) OPT_REPLICATE_REWRITE_DB},
   {"safe-mode",             no_argument,       0, (int) OPT_SAFE},
   {"safe-show-database",    no_argument,       0, (int) OPT_SAFE_SHOW_DB},
-  {"socket",                required_argument, 0, (int) OPT_SOCKET},
+  {"safe-user-create",	    no_argument,       0, (int) OPT_SAFE_USER_CREATE},
   {"server-id",		    required_argument, 0, (int) OPT_SERVER_ID},
   {"set-variable",          required_argument, 0, 'O'},
   {"skip-bdb",              no_argument,       0, (int) OPT_BDB_SKIP},
@@ -2603,6 +2609,7 @@ static struct option long_options[] = {
   {"skip-stack-trace",	    no_argument,       0, (int) OPT_SKIP_STACK_TRACE},
   {"skip-symlink",	    no_argument,       0, (int) OPT_SKIP_SYMLINKS},
   {"skip-thread-priority",  no_argument,       0, (int) OPT_SKIP_PRIOR},
+  {"socket",                required_argument, 0, (int) OPT_SOCKET},
   {"sql-bin-update-same",   no_argument,       0, (int) OPT_SQL_BIN_UPDATE_SAME},
 #include "sslopt-longopts.h"
 #ifdef __WIN__
@@ -2741,6 +2748,8 @@ CHANGEABLE_VAR changeable_vars[] = {
       0, MALLOC_OVERHEAD, (long) ~0, MALLOC_OVERHEAD, IO_SIZE },
   { "record_buffer",           (long*) &my_default_record_cache_size,
       128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD, IO_SIZE },
+  { "record_rnd_buffer",           (long*) &record_rnd_cache_size,
+      0, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD, IO_SIZE },
   { "slave_net_timeout",        (long*) &slave_net_timeout, 
       SLAVE_NET_TIMEOUT, 1, 65535, 0, 1 },
   { "slow_launch_time",        (long*) &slow_launch_time, 
@@ -2856,6 +2865,7 @@ struct show_var_st init_vars[]= {
   {"port",                    (char*) &mysql_port,                  SHOW_INT},
   {"protocol_version",        (char*) &protocol_version,            SHOW_INT},
   {"record_buffer",           (char*) &my_default_record_cache_size,SHOW_LONG},
+  {"record_rnd_buffer",       (char*) &record_rnd_cache_size,	    SHOW_LONG},
   {"query_buffer_size",       (char*) &query_buff_size,		    SHOW_LONG},
   {"safe_show_database",      (char*) &opt_safe_show_db,            SHOW_BOOL},
   {"server_id",               (char*) &server_id,		    SHOW_LONG},
@@ -3030,6 +3040,8 @@ static void usage(void)
   --safe-mode		Skip some optimize stages (for testing)\n\
   --safe-show-database  Don't show databases for which the user has no\n\
                         privileges\n\
+  --safe-user-create	Don't new users cretaion without privileges to the\n\
+		        mysql.user table\n\
   --skip-concurrent-insert\n\
 		        Don't use concurrent insert with MyISAM\n\
   --skip-delay-key-write\n\
@@ -3747,6 +3759,9 @@ static void get_options(int argc,char **argv)
     case OPT_SAFE_SHOW_DB:
       opt_safe_show_db=1;
       break;
+    case OPT_SAFE_USER_CREATE:
+      opt_safe_user_create=1;
+      break;
     case OPT_SKIP_SAFEMALLOC:
 #ifdef SAFEMALLOC
       sf_malloc_quick=1;
@@ -3770,6 +3785,9 @@ static void get_options(int argc,char **argv)
   fix_paths();
   default_table_type_name=ha_table_typelib.type_names[default_table_type-1];
   default_tx_isolation_name=tx_isolation_typelib.type_names[default_tx_isolation];
+  /* To be deleted in MySQL 4.0 */
+  if (!record_rnd_cache_size)
+    record_rnd_cache_size=my_default_record_cache_size;
 }
 
 

sql/records.cc

@@ -66,7 +66,7 @@ void init_read_record(READ_RECORD *info,THD *thd, TABLE *table,
     table->file->rnd_init(0);
 
     if (! (specialflag & SPECIAL_SAFE_MODE) &&
-	my_default_record_cache_size &&
+	record_rnd_cache_size &&
 	!table->file->fast_key_read() &&
 	(table->db_stat & HA_READ_ONLY ||
 	 table->reginfo.lock_type <= TL_READ_NO_INSERT) &&
@@ -216,7 +216,7 @@ static int init_rr_cache(READ_RECORD *info)
     info->reclength=ALIGN_SIZE(info->struct_length);
 
   info->error_offset=info->table->reclength;
-  info->cache_records=my_default_record_cache_size/
+  info->cache_records=record_rnd_cache_size/
     (info->reclength+info->struct_length);
   rec_cache_size=info->cache_records*info->reclength;
   info->rec_cache_size=info->cache_records*info->ref_length;

sql/share/czech/errmsg.txt

@@ -221,3 +221,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/dutch/errmsg.txt

@@ -212,3 +212,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/english/errmsg.txt

@@ -212,3 +212,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/estonian/errmsg.txt

@@ -216,3 +216,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/french/errmsg.txt

@@ -212,3 +212,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/german/errmsg.txt

@@ -215,3 +215,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/greek/errmsg.txt

@@ -212,3 +212,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/hungarian/errmsg.txt

@@ -214,3 +214,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/italian/errmsg.txt

@@ -212,3 +212,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/japanese/errmsg.txt

@@ -214,3 +214,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/korean/errmsg.txt

@@ -212,3 +212,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/norwegian-ny/errmsg.txt

@@ -214,3 +214,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/norwegian/errmsg.txt

@@ -214,3 +214,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/polish/errmsg.txt

@@ -216,3 +216,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/portuguese/errmsg.txt

@@ -212,3 +212,4 @@
 "DROP DATABASE não permitido enquanto uma 'thread' está assegurando um travamento global de leitura",
 "CREATE DATABASE não permitido enquanto uma 'thread' está assegurando um travamento global de leitura",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/romanian/errmsg.txt

@@ -216,3 +216,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/russian/errmsg.txt

@@ -215,3 +215,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/slovak/errmsg.txt

@@ -220,3 +220,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/spanish/errmsg.txt

@@ -213,3 +213,4 @@
 "DROP DATABASE no permitido mientras un thread está ejerciendo un bloqueo de lectura global",
 "CREATE DATABASE no permitido mientras un thread está ejerciendo un bloqueo de lectura global",
 "Wrong arguments to %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/share/swedish/errmsg.txt

@@ -212,3 +212,4 @@
 "DROP DATABASE not allowed while thread is holding global read lock",
 "CREATE DATABASE not allowed while thread is holding global read lock",
 "Felaktiga argument till %s",
+"%-.32s@%-.64s is not allowed to create new users",

sql/sql_acl.cc

@@ -943,16 +943,41 @@ end:
   DBUG_RETURN(error);
 }
 
+
+/* Return 1 if we are allowed to create new users */
+
+static bool test_if_create_new_users(THD *thd)
+{
+  bool create_new_users=1;    // Assume that we are allowed to create new users
+  if (opt_safe_user_create && !(thd->master_access & INSERT_ACL))
+  {
+    TABLE_LIST tl;
+    uint db_access;
+    bzero((char*) &tl,sizeof(tl));
+    tl.db=	   (char*) "mysql";
+    tl.real_name= (char*) "user";
+    db_access=acl_get(thd->host, thd->ip, (char*) &thd->remote.sin_addr,
+		      thd->priv_user, tl.db);
+    if (!(db_access & INSERT_ACL))
+    {
+      if (check_grant(thd,INSERT_ACL,&tl,0,1))
+	create_new_users=0;
+    }
+  }
+  return create_new_users;
+}
+
+
 /****************************************************************************
 ** Handle GRANT commands
 ****************************************************************************/
 
 static int replace_user_table(TABLE *table, const LEX_USER &combo,
-			      uint rights, char what)
+			      uint rights, char what, bool create_user)
 {
   int error = -1;
   uint i,j;
-  bool ima=0;
+  bool old_row_exists=0;
   char *password,empty_string[1];
   DBUG_ENTER("replace_user_table");
 
@@ -971,14 +996,21 @@ static int replace_user_table(TABLE *table, const LEX_USER &combo,
 			      (byte*) table->field[0]->ptr,0,
 			      HA_READ_KEY_EXACT))
   {
-    if (what == 'N')
+    if (!create_user)
     {
-      my_printf_error(ER_NONEXISTING_GRANT,ER(ER_NONEXISTING_GRANT),
-		      MYF(0),combo.user.str,combo.host.str);
+      THD *thd=current_thd;
+      if (what == 'N')
+	my_printf_error(ER_NONEXISTING_GRANT,ER(ER_NONEXISTING_GRANT),
+			MYF(0),combo.user.str,combo.host.str);
+      else
+	my_printf_error(ER_NO_PERMISSON_TO_CREATE_USER,
+			ER(ER_NO_PERMISSON_TO_CREATE_USER),
+			MYF(0),thd->user,
+			thd->host ? thd->host : thd->ip ? thd->ip: "");
       error= -1;
       goto end;
     }
-    ima = 0; // no row; ima on Serbian means 'there is something'
+    old_row_exists = 0;
     restore_record(table,2);			// cp empty row from record[2]
     table->field[0]->store(combo.host.str,combo.host.length);
     table->field[1]->store(combo.user.str,combo.user.length);
@@ -986,7 +1018,7 @@ static int replace_user_table(TABLE *table, const LEX_USER &combo,
   }
   else
   {
-    ima = 1;
+    old_row_exists = 1;
     store_record(table,1);			// Save copy for update
     if (combo.password.str)			// If password given
       table->field[2]->store(password,(uint) strlen(password));
@@ -1001,7 +1033,7 @@ static int replace_user_table(TABLE *table, const LEX_USER &combo,
   }
   rights=get_access(table,3);
 
-  if (ima)  // there is a row, therefore go to update, instead of insert
+  if (old_row_exists)
   {
     /*
       We should NEVER delete from the user table, as a uses can still
@@ -1033,7 +1065,7 @@ static int replace_user_table(TABLE *table, const LEX_USER &combo,
     acl_cache->clear(1);			// Clear privilege cache
     if (!combo.password.str)
       password=0;				// No password given on command
-    if (ima)
+    if (old_row_exists)
       acl_update_user(combo.user.str,combo.host.str,password,rights);
     else
       acl_insert_user(combo.user.str,combo.host.str,password,rights);
@@ -1052,7 +1084,7 @@ static int replace_db_table(TABLE *table, const char *db,
 			    uint rights, char what)
 {
   uint i,j,store_rights;
-  bool ima=0;
+  bool old_row_exists=0;
   int error;
   DBUG_ENTER("replace_db_table");
 
@@ -1076,7 +1108,7 @@ static int replace_db_table(TABLE *table, const char *db,
 		      combo.user.str,combo.host.str);
       goto abort;
     }
-    ima = 0; // no row
+    old_row_exists = 0;
     restore_record(table,2);			// cp empty row from record[2]
     table->field[0]->store(combo.host.str,combo.host.length);
     table->field[1]->store(db,(uint) strlen(db));
@@ -1084,7 +1116,7 @@ static int replace_db_table(TABLE *table, const char *db,
   }
   else
   {
-    ima = 1;
+    old_row_exists = 1;
     store_record(table,1);
   }
 
@@ -1097,8 +1129,9 @@ static int replace_db_table(TABLE *table, const char *db,
   rights=get_access(table,3);
   rights=fix_rights_for_db(rights);
 
-  if (ima) // there is a row, therefore go update, else insert
+  if (old_row_exists)
   {
+    // update old existing row
     if (rights)
     {
       if ((error=table->file->update_row(table->record[1],table->record[0])))
@@ -1117,7 +1150,7 @@ static int replace_db_table(TABLE *table, const char *db,
   }
 
   acl_cache->clear(1);				// Clear privilege cache
-  if (ima)
+  if (old_row_exists)
     acl_update_db(combo.user.str,combo.host.str,db,rights);
   else
     acl_insert_db(combo.user.str,combo.host.str,db,rights);
@@ -1324,7 +1357,7 @@ static int replace_column_table(GRANT_TABLE *g_t,
   while ((xx=iter++))
   {
     uint privileges = xx->rights;
-    bool ima=0;
+    bool old_row_exists=0;
     key_restore(table,key,0,key_length);
     table->field[4]->store(xx->column.ptr(),xx->column.length());
 
@@ -1339,7 +1372,7 @@ static int replace_column_table(GRANT_TABLE *g_t,
 	result= -1; /* purecov: inspected */
 	continue; /* purecov: inspected */
       }
-      ima = 0;
+      old_row_exists = 0;
       restore_record(table,2);			// Get empty record
       key_restore(table,key,0,key_length);
       table->field[4]->store(xx->column.ptr(),xx->column.length());
@@ -1353,13 +1386,13 @@ static int replace_column_table(GRANT_TABLE *g_t,
 	privileges = tmp & ~(privileges | rights);
       else
 	privileges |= tmp;
-      ima = 1;
+      old_row_exists = 1;
       store_record(table,1);			// copy original row
     }
 
     table->field[6]->store((longlong) get_rights_for_column(privileges));
 
-    if (ima) // there is a row, therefore go update, else insert
+    if (old_row_exists)
     {
       if (privileges)
 	error=table->file->update_row(table->record[1],table->record[0]);
@@ -1465,7 +1498,7 @@ static int replace_table_table(THD *thd, GRANT_TABLE *grant_table,
 			       uint rights, uint kolone, bool revoke_grant)
 {
   char grantor[HOSTNAME_LENGTH+1+USERNAME_LENGTH];
-  int ima = 1;
+  int old_row_exists = 1;
   int error=0;
   uint store_table_rights,store_col_rights;
   DBUG_ENTER("replace_table_table");
@@ -1505,13 +1538,13 @@ static int replace_table_table(THD *thd, GRANT_TABLE *grant_table,
 		      table_name);		/* purecov: deadcode */
       DBUG_RETURN(-1);				/* purecov: deadcode */
     }
-    ima = 0;					// no row
+    old_row_exists = 0;
     restore_record(table,1);			// Get saved record
   }
 
   store_table_rights=get_rights_for_table(rights);
   store_col_rights=get_rights_for_column(kolone);
-  if (ima)
+  if (old_row_exists)
   {
     uint j,k;
     store_record(table,1);
@@ -1536,7 +1569,7 @@ static int replace_table_table(THD *thd, GRANT_TABLE *grant_table,
   rights=fix_rights_for_table(store_table_rights);
   kolone=fix_rights_for_column(store_col_rights);
 
-  if (ima) // there is a row, therefore go update, else insert
+  if (old_row_exists)
   {
     if (store_table_rights || store_col_rights)
     {
@@ -1668,10 +1701,12 @@ int mysql_table_grant (THD *thd, TABLE_LIST *table_list,
       continue;
     }
     /* Create user if needed */
-    if ((replace_user_table(tables[0].table,
+    if (replace_user_table(tables[0].table,
 			    *Str,
 			    0,
-			    revoke_grant ? 'N' : 'Y')))
+			   revoke_grant ? 'N' : 'Y',
+			   (revoke_grant ? 0 :
+			    test_if_create_new_users(thd))))
     {
       result= -1;				// Remember error
       continue;					// Add next user
@@ -1773,6 +1808,7 @@ int mysql_grant (THD *thd, const char *db, List <LEX_USER> &list, uint rights,
   List_iterator <LEX_USER> str_list (list);
   LEX_USER *Str;
   char what;
+  bool create_new_users=0;
   TABLE_LIST tables[2];
   DBUG_ENTER("mysql_grant");
 
@@ -1799,8 +1835,10 @@ int mysql_grant (THD *thd, const char *db, List <LEX_USER> &list, uint rights,
     DBUG_RETURN(-1);				/* purecov: deadcode */
   }
 
- // go through users in user_list
+  if (!revoke_grant)
+    create_new_users= test_if_create_new_users(thd);
 
+  // go through users in user_list
   pthread_mutex_lock(&LOCK_grant);
   VOID(pthread_mutex_lock(&acl_cache->lock));
   grant_version++;
@@ -1822,11 +1860,14 @@ int mysql_grant (THD *thd, const char *db, List <LEX_USER> &list, uint rights,
     }
     if ((replace_user_table(tables[0].table,
 			    *Str,
-			    (!db ? rights : 0), what)))
-      result= -1;
-    if (db && replace_db_table(tables[1].table, db, *Str, rights & DB_ACLS,
-			       what))
+			    (!db ? rights : 0), what, create_new_users)))
       result= -1;
+    else
+    {
+      if (db && replace_db_table(tables[1].table, db, *Str, rights & DB_ACLS,
+				 what))
+	result= -1;
+    }
   }
   VOID(pthread_mutex_unlock(&acl_cache->lock));
   pthread_mutex_unlock(&LOCK_grant);
@@ -1978,7 +2019,7 @@ void grant_reload(void)
 ****************************************************************************/
 
 bool check_grant(THD *thd, uint want_access, TABLE_LIST *tables,
-		 uint show_table)
+		 uint show_table, bool no_errors)
 {
   TABLE_LIST *table;
   char *user = thd->priv_user;
@@ -2026,7 +2067,7 @@ bool check_grant(THD *thd, uint want_access, TABLE_LIST *tables,
 
  err:
   pthread_mutex_unlock(&LOCK_grant);
-  if (show_table != 1)				// Not a silent skip of table
+  if (!no_errors)				// Not a silent skip of table
   {
     const char *command="";
     if (want_access & SELECT_ACL)

sql/sql_acl.h

@@ -74,7 +74,7 @@ int  grant_init(void);
 void grant_free(void);
 void grant_reload(void);
 bool check_grant(THD *thd, uint want_access, TABLE_LIST *tables,
-		 uint show_command=0);
+		 uint show_command=0, bool dont_print_error=0);
 bool check_grant_column (THD *thd,TABLE *table, const char *name,uint length,
 			 uint show_command=0);
 bool check_grant_all_columns(THD *thd, uint want_access, TABLE *table);

sql/sql_base.cc

@@ -133,7 +133,7 @@ int list_open_tables(THD *thd,List<char> *tables, const char *db,
       table_list.db= (char*) db;
       table_list.real_name= entry->real_name;/*real name*/
       table_list.grant.privilege=col_access;
-      if (check_grant(thd,TABLE_ACLS,&table_list,1))
+      if (check_grant(thd,TABLE_ACLS,&table_list,1,1))
         continue;
     }
     /* need to check if he have't already listed it */

sql/sql_parse.cc

@@ -36,7 +36,6 @@ extern "C" int gethostname(char *name, int namelen);
 static int check_for_max_user_connections(const char *user, int u_length,
 					  const char *host);
 static void decrease_user_connections(const char *user, const char *host);
-static bool check_table_access(THD *thd,uint want_access, TABLE_LIST *tables);
 static bool check_db_used(THD *thd,TABLE_LIST *tables);
 static bool check_merge_table_access(THD *thd, char *db, TABLE_LIST *tables);
 static bool check_dup(THD *thd,const char *db,const char *name,
@@ -1956,7 +1955,7 @@ mysql_execute_command(void)
        else
 	 res = mysql_grant(thd, lex->db, lex->users_list, lex->grant,
 			   lex->sql_command == SQLCOM_REVOKE);
-       if(!res)
+       if (!res)
        {
 	 mysql_update_log.write(thd, thd->query,thd->query_length);
 	 if (mysql_bin_log.is_open())
@@ -2116,7 +2115,7 @@ bool check_process_priv(THD *thd)
 ** in the table list for GRANT checking
 */
 
-static bool
+bool
 check_table_access(THD *thd,uint want_access,TABLE_LIST *tables)
 {
   uint found=0,found_access=0;

sql/sql_show.cc

@@ -220,7 +220,7 @@ mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
       table_list.db= (char*) db;
       table_list.real_name=file->name;
       table_list.grant.privilege=col_access;
-      if (check_grant(thd,TABLE_ACLS,&table_list,1))
+      if (check_grant(thd,TABLE_ACLS,&table_list,1,1))
         continue;
     }
     if (files->push_back(thd->strdup(file->name)))

sql/sql_table.cc

@@ -59,9 +59,9 @@ int mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists)
   VOID(pthread_mutex_lock(&LOCK_open));
   pthread_mutex_unlock(&thd->mysys_var->mutex);
 
-  if(global_read_lock)
+  if (global_read_lock)
   {
-    if(thd->global_read_lock)
+    if (thd->global_read_lock)
     {
       my_error(ER_TABLE_NOT_LOCKED_FOR_WRITE,MYF(0),
 	       tables->real_name);
@@ -1126,7 +1126,12 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
     strmov(new_name_buff,new_name);
     fn_same(new_name_buff,table_name,3);
 #ifdef FN_LOWER_CASE
-    if (!my_strcasecmp(new_name_buff,table_name))// Check if name changed
+    if (lower_case_table_names)
+      casedn_str(new_name);
+    if ((lower_case_table_names &&
+	 !my_strcasecmp(new_name_buff,table_name)) ||
+	(!lower_case_table_names &&
+	 !strcmp(new_name_buff,table_name)))
 #else
     if (!strcmp(new_name_buff,table_name))	// Check if name changed
 #endif